Trace Gas Orbiter finds a canyon on Mars ‘packed full’ of water ice - Digital Trends

A recent study has revealed plentiful water beneath the martian surface in the Valles Marineris canyon system.
Billions of years ago, Mars used to have plentiful liquid water on its surface and may even have once looked like Earth. But today, it is dry and arid with almost no liquid water accessible — which i… [+2121 chars] Read More